Finding the Fourth Proportional to 455,336.13, 683,361.07 and 317,663.91
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Solution
The fourth proportional to 455,336.13, 683,361.07 and 317,663.91 is: 476,744.84
Step by Step Solution
- Step 1: Write the proportion equation
455,336.13 : 683,361.07 = 317,663.91 : x - Step 2: Convert to fraction form
455,336.13/683,361.07 = 317,663.91/x - Step 3: Cross multiply
455,336.13x = 683,361.07 × 317,663.91 - Step 4: Simplify right side
455,336.13x = 217,079,151,973.47 - Step 5: Solve for x
x = 217,079,151,973.47/455,336.13 - Step 6: Final answer
x = 476,744.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.